Technology matters when it comes to extreme oversizing: The Sunny Central inverters from SMA are designed for maximum oversizing capabilities. PV power plant projects with SMA central inverters profit from more flexibility, reliability, technology safety and highest profitability.
With oversizing, the PV power plant’s nominal power is achieved faster in the morning, and the PV power plant remains connected to the grid longer in the evening. Calculated for the total operating time of the PV project, higher energy yields can thus be generated. Adequate oversizing increases the profitability of a PV power plant. The Sunny Central inverters from SMA with their robust design offer maximum flexibility for project-specific oversizing.
SMA takes the effect of short-term solar irradiation increase (mirror cloud effect) into account with a high short circuit capability on the DC side of the inverter. This corresponds also to an outstanding oversizing possibility of up to 250 % (peak PV array power in relation to the maximum AC inverter output power).
If you want to learn more about the mirror cloud effect, you can find all information in s´the SMA Whitepaper.
With the exception of installations at high altitudes, the sun's maximum irradiation power remains constant at around 1,000 W/m². However, according to studies conducted by Mike Zehner, what are known as cloud effects can lead to a short-term increase in solar irradiation on PV modules, which is caused by reflection of solar irradiation from cumulus clouds. According to the study, this effect would increase the irradiation values to up to 25% over the usual 1,000 W/m² (i.e., to up to 1,250 W/m²).
With Sunny Central inverters, plant owners have the opportunity to get the maximum efficiency out of their PV power plant through an extremly high oversizing capacity while maintaining the same life expectancy, availability and operating costs of the devices.
Sunny Central Inverters offer: